code: def _is_double_children(expr):
      return "LogicalJoin" in expr or "LogicalUnion" in expr
  
file_path: blazingsql/pyblazing/pyblazing/apiv2/algebra/json_plan.py
imports: import collections
  import json
  import re
label_desc: Use image node_id 4 for calling a global function with example usage: _is_double_children(expr) and returns: unknown